The isospectrality of asymptotic quasinormal modes of large Gauss-Bonnet d-dimensional black holes
arXiv:2206.11377 · doi:10.1016/j.nuclphysb.2023.116255
Abstract
We compute the quasinormal frequencies of d-dimensional large spherically symmetric black holes with Gauss-Bonnet corrections in the highly damped regime. We solve perturbatively the master differential equation and we compute the monodromies of the master perturbation variable (analytically continued to the complex plane) in different contours, in order to obtain the quasinormal mode spectra. We consider tensorial, vectorial and scalar gravitational perturbations, obtaining the same frequencies for the three cases like in Einstein gravity. We also separately perform the same calculation for test scalar fields.
26 pages, 3 figures. v2: clarifications and references added. Published version
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- Korteweg-de Vries Integrals for Modified Black Hole Potentials: Instabilities and other Questions
- Greybody factors of string-corrected d-dimensional black holes
- WKB method and quasinormal modes of string-theoretical d-dimensional black holes